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Hexagon nut M27 DIN 934 A4-70
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Description
Hexagon nut M27 DIN 934 A4-70 stainless steel acid-resistant
Hexagon nut M27 DIN 934 A4-70 is a premium fastening element made from acid-resistant stainless steel grade A4 (AISI 316). The ideal solution for installers who require maximum corrosion resistance in aggressive environments – including marine, chemical and industrial applications.
Why A4-70 steel? A4 material (AISI 316) contains molybdenum, which provides exceptional resistance to pitting and crevice corrosion – significantly exceeding standard A2 steel. Strength class 70 ensures solid mechanical parameters whilst maintaining resistance to aggressive chemical agents, making it suitable for numerous industrial and outdoor applications.
When to choose A4-70 instead of A2-70? A4 steel is essential wherever there is contact with seawater, chlorides, acids or other aggressive media. It is the standard choice for photovoltaic installations in coastal zones, swimming pools, chemical and food processing industries.
Compliance with DIN 934 standard means a standardised hexagonal shape that enables easy tightening using a standard spanner. The nut is reusable and fits all M27 metric bolts with right-hand thread.
Technical parameters
- Standard: DIN 934
- Thread diameter: M27
- Material: stainless steel A4 (AISI 316) – acid-resistant
- Strength class: 70
- Thread type: metric, right-hand
- Shape: hexagonal
Applications
- Photovoltaic installations: mounting structures in coastal and industrial zones
- Marine environments: ports, marinas, waterside structures
- Chemical industry: installations exposed to contact with acids and solvents
- Food processing industry: production lines requiring high hygiene standards
- Swimming pools and spas: components in contact with chlorinated water
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Technical data
| Thread type | M27 |
| Steel Grade | A4 |
| DIN | DIN 934 |